Road-engine



(No Model.) G. R. SWEET.

ROAD ENGINE. No. 284,147. P nted Aug. 28, 1883.

M A BY j W ATTI JBNEYS.

bya frame, A, of suitable size and form, which frame is supported upon the rear axle, a, and

35 be of suflicient capacity for carrying coal for f UNITED STATES PATENT OFFICE.

CHARLES R. SWEET, or PORTSMOUTH, OHIO.

ROAD-ENGINE.

SPECIFICATION forming part of Letters Patent No. 284,147, dated August 28, 1883.

Application filed March 8,1893, (No model.)

To all whom it may concern:

\ Be it known that 1, CHARLES R. SWEET, of Portsmouth, in the county of Scioto and State of Ohio, have invented a new and Improved RoadEngine, of which the following is afull,

clear, and exact description.

The object of my invention 1s to constructa road-enginefor use in the streets of cities, on

farms, and on country roads, and that may 16 also be usedas a stationary power for farm work, or otherwise, wherever available.

20 which similar letters of reference indicate corresponding parts inall the figures. Figure 1 is a side elevation of my improved engine. Fig. 2 is a plan view of the same, and Fig. 3 is an inverted plan View of the engine. The mechanisinand other parts are carried large wheels b b, loose on the axle, and a forward swiveling axle, c, on which are loose wheels (1 d.

.1 from beingcaught on a center.

Bis a boiler, which is of the vertical type' andsupported at about the mid-1ength of the frame upon curved bars e, e. Uponthe forward part of the-frame, in front of the boiler, is a box or receptacle, 0, for coal, which should a days use. Thetruck will also carry a water-tank of suitable capacity.

. At the rear part of the frame, and at the cen- 4o ter, are mounted the two steam-cylinders f f,

the pistons of which extend to the rear, and are connectedto separate cross-heads g, fitted for movement in slides h. separate cross-heads is to prevent the engine In front of r the cylinder, and above the rear axle, is mounted a double-crank shaft, h, fromthe cranks of which rods m extend to the cross-heads g, the

connection being at the outer side of the The object of the On the shaft h are gear-wheels 13, meshing with larger gear-wheels k, that are on the rear axle, a. Upon the shaft h there is also a pulley, Z, for connection of a belt when the engine is used as a stationary power; or, if desired, there may be aseparateshaft with gearwheels for engaging the gear-wheels 1; when they are nnshipped from engaging with the wheel k. V

In order togive rotation to the wheels I) by means of the shaft a, the shaft is formed at its end with flanges n, and the wheels are provided with pins 0 0, projecting from their hubs, on opposite sides of the center, so that the flanges a shall come in contact with the pins, and thus carry the wheels with the shaft. At the same time this construction allows about a quarter-rotation of the wheels upon the shaft to facilitate turning the machine upon sharp curves. l

The forward axle may be provided with a bolster and spring, as in ordinary wagons, so as to make the machine easyriding. der to guide the engine, there is provided upon the forward part of the frame a shaft carrying a hand-wheel, p, and a sprocket or chain wheel, a", from which a chain, q, passes to a similar sprocket-wheelon a cross-shaft or drum, 8, mounted beneath the frame of the machine. From the drum 8 ropes or chains pass to the forward axle, 0. By this construa tion, by turning the hand-wheel p, the axle is moved to the right or left, as desired, for changing the direction of the engine. The steering-wheel p is providedvwith a brakewheel, t, and a brake-lever, a, is fitted on the frame of the machine, in position for being brought into contact with the brake-wheel t. This is for the purpose of holding the steering- -wheel and preventing any lateral movement of the forward axle while passing over obstructions. I

On the frame of the machine is fitted asuitable cab, D, forflprotecting the machinery and the enginemen from the weather. Beneath the rear partof the frame A is a draft-hook,

o, for connection of the carriage to be drawn In front of the draft-hook is a by the engine.

lnor

object being to cause the carriages to follow the engine around a curve.

Having thus described my invention, what I claim as new, and desire to secureby Letters At the rear part of the frame is fitted a staff, Patent, is

a, that is for supporting the frame in case of The combination of the brake-wheel t, the

necessity. Usually this staff will be sustained brake-lever u, and steering-wheel p, substanin a horizontal position, as shown in Fig. 1.

t will be seen that the weight of the machinery and parts is carried low on the frame A, so that there is little or no dc nger of the machine upsetting.

In practice I shall work the valves with the ordinary link-motion common to locomotives.

tially as shown and described.

- O R. SWEET.

XVitnesses G. W. C. OLERE, ALEXANDER SIMPSON. 

